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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#require(qx.sys.Client)
************************************************************************ */
/**
* A string builder class
* <p>
* += operator is faster in Firefox and Opera.
* Array push/join is faster in Internet Explorer
* </p><p>
* Even with this wrapper, which costs some time, this is
* faster in Firefox than the alternative Array concat in
* all browsers (which is in relation to IE's performance issues
* only marginal). The IE performance loss caused by this
* wrapper is not relevant.
* </p><p>
* So this class seems to be the best compromise to handle
* string concatination.</p>
*/
qx.OO.defineClass("qx.type.StringBuilder", qx.core.Object,
function()
{
qx.core.Object.call(this);
this.init();
this.add.apply(this, arguments);
});
/**
* Resets the contents of the Stringbuilder
* equivalent to <pre>str = ""; </pre>
*/
qx.Proto.clear = function() {}
/**
* Returns the contents of the concatenated string
*
* @return (string) string content
*/
qx.Proto.get = function() {}
/**
* Append a variable number of string arguments
*
* @param varargs (string) variable number os strings to be added
*/
qx.Proto.add = function(varargs) {}
/**
* Initializes the contents of the Stringbuilder
* equivalent to <pre>str = ""; </pre>
*/
qx.Proto.init = function() {}
/** Destructor */
qx.Proto.dispose = function() {}
/**
* Returns the contents of the concatenated string
*
* @return (string) string content
*/
qx.Proto.toString = function() {}
if (qx.sys.Client.getInstance().isMshtml())
{
qx.Proto.clear = function() {
this._array = [];
}
qx.Proto.get = function() {
return this._array.join("");
}
qx.Proto.add = function() {
this._array.push.apply(this._array, arguments);
}
qx.Proto.init = function() {
this._array = [];
}
qx.Proto.dispose = function()
{
if (this.getDisposed()) {
return;
}
this._array = null;
qx.core.Object.prototype.dispose.call(this);
}
}
else
{
qx.Proto.clear = function() {
this._string = "";
}
qx.Proto.get = function() {
return this._string;
}
qx.Proto.add = function() {
this._string += Array.prototype.join.call(arguments, "");
}
qx.Proto.init = function() {
this._string = "";
}
qx.Proto.dispose = function()
{
if (this.getDisposed()) {
return;
}
this._string = null;
qx.core.Object.prototype.dispose.call(this);
}
}
qx.Proto.toString = qx.Proto.get;
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